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An open-source AI tools directory with clear use cases, visible source freshness, and maintenance evidence for anyone deciding what to try.

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Rankings use public ecosystem signals. Treat them as a starting point, then confirm license, setup, safety, and fit with the upstream project.
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Project comparison

PyTorch Lightning vs Keras

Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.

PyTorch Lightning

Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.

Best matched with other framework tools.

31.1K
Stars
+19
Weekly
61/100
Health
Keras

Deep Learning for humans

Best matched with other framework tools.

64.2K
Stars
+114
Weekly
79/100
Health

Quick Take

Adoption

Keras has the larger GitHub footprint with 64.2K stars.

Momentum

Keras is currently growing faster at +114 stars this week.

Maintenance

Keras has the stronger automated maintenance signal at 79/100. This is not a security or fit verdict.

Side-by-side evidence

Use these signals to narrow your choice, then confirm setup, license, and fit upstream.

SignalPyTorch LightningKeras
Evidence statusBasic listing· 2026-10-04 09:18 UTCBasic listing· 2026-10-04 09:18 UTC
GitHub stars31.1K64.2K
Weekly growth+19+114
Health scoreHealthy61/100Healthy79/100
Contributors1.1K1.5K
Commits per week4.820.5
Open issues1.0K211
LanguagePythonPython
LicenseApache-2.0Apache-2.0
Last commit2026-05-11 09:32 UTC2026-07-22 01:39 UTC
Last release2.6.1v3.15.0

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